CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONSTM 9-2350-256-202-19 ELECTRICAL TROUBLESHOOTING-ContinuedENGINE OIL TEMPERATURE GAGE-ContinuedWARNINGRemove all jewelry such as rings, dog tags,bracelets, etc. If jewelry contacts a metalsurface a direct short may result in instantheating of tools, damage to equipment,and injury or death to personnel.GReconnect bulkhead to engine bracket and rear fueltank transmitter wiring harness to engine disconnect.Remove powerplant (see paragraph 3-1). Disconnectwire 33 from engine oil temperature sending unit.Place red lead of multimeter on wire 33 and black leadto ground. Turn MASTER switch on and check forvoltage. Turn MASTER switch OFF. If voltage ispresent, replace engine oil temperature sending unit(see paragraph 6-22). If voltage is not present,repair/replace wire 33 of engine wiring harness (seeparagraph 6-58 for dual voltage; 6-59 for singlevoltage).2-104
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